Extensive starcloth rental and sales from S&H Technical Support has been further enhanced by the introduction of Interactive Video. Supporting images from up to three linear linked projectors, this system uses motion detectors at the projector position to overlay 'interference' animation - put simply, step into a projected image of fish in a pond and each footstep will trigger ripples and the fish to dart away, all from image macros within the animation footage. Not cheap, but great for branding impact.